com.audata.client.classification.ClassBrowser.java Source code

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Here is the source code for com.audata.client.classification.ClassBrowser.java

Source

/*
 * +----------------------------------------------------------------------+
 * | AuDoc 2                                                              |
 * +----------------------------------------------------------------------+
 * | Copyright (c) 2004-2007 Audata Ltd                                   |
 * +----------------------------------------------------------------------+
 * | This source file is subject to version 2 of the Gnu Public License,  |
 * | that is bundled with this package in the file License.txt, and is    |
 * | available at through the world-wide-web at                           |
 * | http://www.gnu.org/licenses/gpl.txt.                                 |
 * | If you did not receive a copy of the GPL license and are unable to   |
 * | obtain it through the world-wide-web, please send a note to          |
 * | support@audata.co.uk so we can mail you a copy immediately.          |
 * +----------------------------------------------------------------------+
 * | Authors: Jonathan Moss <jon.moss@audata.co.uk>                       |
 * +----------------------------------------------------------------------+ 
 */
package com.audata.client.classification;

import com.audata.client.AuDoc;
import com.audata.client.Language;
import com.audata.client.util.TreeNodeType;
import com.audata.client.widgets.CaptionButton;
import com.google.gwt.core.client.GWT;
import com.google.gwt.json.client.JSONArray;
import com.google.gwt.json.client.JSONBoolean;
import com.google.gwt.json.client.JSONNumber;
import com.google.gwt.json.client.JSONString;
import com.google.gwt.user.client.ui.HasAlignment;
import com.google.gwt.user.client.ui.Label;
import com.google.gwt.user.client.ui.ScrollPanel;
import com.google.gwt.user.client.ui.Tree;
import com.google.gwt.user.client.ui.TreeItem;
import com.google.gwt.user.client.ui.TreeListener;
import com.google.gwt.user.client.ui.VerticalPanel;

public class ClassBrowser extends VerticalPanel implements TreeListener {

    private static final Language LANG = (Language) GWT.create(Language.class);
    public Tree classes;
    private TreeItem selected;
    private Label loading;
    private ScrollPanel sp;
    private AuDoc audoc;

    public ClassBrowser(String width, String height) {
        this(null, width, height);
    }

    public ClassBrowser(AuDoc audoc, String width, String height) {
        this.audoc = audoc;
        this.setSize(width, height);
        this.sp = new ScrollPanel();

        this.classes = new Tree();
        this.classes.setImageBase("images/16x16/");
        this.classes.addTreeListener(this);
        this.classes.addStyleName("audoc-tree");
        //this.classes.setSize("1000px", "1000px");
        this.selected = null;
        this.sp.setSize(width, height);

        this.add(this.sp);
    }

    public void onUpdate() {
        this.loading = new Label(LANG.no_classes_Text());
        this.loading.setWidth("100%");
        this.loading.setHorizontalAlignment(HasAlignment.ALIGN_CENTER);
        this.loading.addStyleName("audoc-classLabel");
        this.sp.setWidget(this.loading);
        this.selected = null;
        this.classes.clear();
        this.getClasses(null);
    }

    public void onTreeItemSelected(TreeItem item) {
        this.selected = item;
        TreeNodeType nt = (TreeNodeType) item.getUserObject();
        if (nt.hasChildren) {
            this.getClasses(nt.uuid);
        } else {
            if (this.audoc != null) {
                this.getRecords(nt.uuid, nt.name);
            }
        }
    }

    public void onTreeItemStateChanged(TreeItem item) {

    }

    public void addClass(String name, String uuid, TreeItem parent, boolean hasChildren) {
        //this.sp.setWidget(this.classes);
        CaptionButton i = new CaptionButton();
        i.setCaptionText(name);
        if (hasChildren) {
            //i = new CaptionButton("images/16x16/treeclass.gif", name, CaptionButton.CAPTION_EAST);
            i.setImageUrl("images/16x16/treeclass.gif");

        } else {
            i.setImageUrl("images/16x16/treeclassb.gif");
        }
        i.setCaptionStyleName("tree-text");
        TreeItem c = new TreeItem(i);
        c.setUserObject(new TreeNodeType("class", uuid, name, hasChildren));
        if (parent == null) {
            this.classes.addItem(c);
        } else {
            parent.addItem(c);
            parent.setState(true);
        }
    }

    public void addClass(String name, String uuid, boolean hasChildren) {
        this.addClass(name, uuid, null, hasChildren);
    }

    private void getClasses(String uuid) {
        JSONArray params = new JSONArray();
        String method = "";
        if (uuid == null) {
            //get toplevel classes
            method = "recMan.getTopLevel";
        } else {
            //get child classes
            params.set(0, new JSONString(uuid));
            method = "recMan.getChildren";
        }
        AuDoc.jsonCall.asyncPost2(method, params, new ClassResponseHandler(this, this.selected));
    }

    private void getRecords(String uuid, String name) {
        String method = "search.rawsearch";
        String query = "FROM Record WHERE Classification.uuid = '" + uuid + "'";
        JSONArray params = new JSONArray();
        params.set(0, new JSONString(query));
        params.set(1, new JSONNumber(0));
        params.set(2, JSONBoolean.getInstance(false));
        AuDoc.jsonCall.asyncPost2(method, params, new RecordResponseHandler(this.audoc, query, name));
    }

    public void show() {
        this.sp.setWidget(this.classes);
    }

    public void onLogout() {
        this.sp.setWidget(this.loading);
    }
}